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| 滨海水稻土腐殖质的组成及随种稻时间演变的研究初报 | |
| 引用本文： | 古小治,章钢娅,俞元春,曹志洪.滨海水稻土腐殖质的组成及随种稻时间演变的研究初报[J].土壤学报,2008,45(4):635-640. |
| 作者姓名： | 古小治 章钢娅 俞元春 曹志洪 |
| 作者单位： | 1. 中国科学院南京土壤研究所,南京,210008;南京林业大学森林资源与环境学院,南京,210037 2. 中国科学院南京土壤研究所,南京,210008 3. 南京林业大学森林资源与环境学院,南京,210037 |
| 基金项目： | 国家自然科学基金项目"水稻土可持续利用机理研究～5000年前埋藏古水稻土与现代水稻土质量的比较" , 中国科学院知识创新工程重要方向项目 |
| 摘 要： | 通过研究滨海水稻土腐殖质各成分的组成及性质,结果表明各组分有机碳及氮含量均为表层最高,C/N在结构相对稳定的结合态腐殖质和胡敏酸(HA)中波动较小,而在游离态腐殖质和富里酸(FA)中变化较大。随着种稻时间变长,结合态的腐殖质和胡敏酸有在土壤中积累的趋势,在1 000 a水稻土中腐殖质的芳香化程度最高、结构最复杂。 |
| 关 键 词： | 滨海水稻土 腐殖质 数量特征 结构特征 |
| 收稿时间： | 2007/1/14 0:00:00 |
| 修稿时间： | 4/3/2007 12:00:00 AM |
COMPOSITION OF HUMUS IN COASTAL PADDY SOIL AND ITS SUCCESSION WITH CULTIVATION AGE |
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| Gu Xiaozhi,Zhang Gangy,Yu Yuanchun and Cao Zhihong.COMPOSITION OF HUMUS IN COASTAL PADDY SOIL AND ITS SUCCESSION WITH CULTIVATION AGE[J].Acta Pedologica Sinica,2008,45(4):635-640. | |
| Authors: | Gu Xiaozhi Zhang Gangy Yu Yuanchun and Cao Zhihong |
| Institution: | 1 (1 Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China) (2 Forestry Resource and Environment College,Nanjing Forestry University,Nanjing 210037,China) |
| Abstract: | A study was carried out to explore composition and characters of humus in coastal paddy soil.Results show that the surface soil layer was the highest in organic carbon and N content regardless of humus fractions.In tightly bonded humus relatively stable in structure and humus acids,C/N ratio fluctuated less,while in loosely bonded humus and fulvic acids,it did in a wider range.The formers showed an accumulating trend in soils with the age of paddy planting,and the highest degree of aromatization and the mos... |
| Keywords: | Coastal Paddy Soil Humus Quantitative characteristic structural characters |
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